A. Concrete
B. Loose sand
C. Asphalt
D. Firm earth
Related Mcqs:
- A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistence of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will________________?
A. reduce by 200 kg
B. increase by 200 kg
C. increase by 250 kg
D. reduce by 250 kg - If the gross vehicle weight of a truck is 30 t and rolling resistance is 30 kg/tonne, then the tractive effort required to keep the truck moving at a uniform speed is__________________?
A. 30 kg
B. 300 kg
C. 900 kg
D. 1000 kg - Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors?
A. Ice
B. Concrete
C. Loose sand
D. Earth - A four wheel trac*or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The rolling resistance of the road will be___________________?
A. 20 kg/tonne
B. 30 kg/tonne
C. 40 kg/tonne
D. 50 kg/tonne - Rolling resistance of a wheel depends upon_____________?
(i) Vehicle load
(ii) Grade
(iii) Ground
select the correct statements?A. only (i) is correct
B. (i) and (ii) are correct
C. (i) and (iii) are correct
D. (ii) and (iii) are correct - The maximum rimpull in the first gear of a tractor while towing a load is 6300 kg. The tractor weighs 12.5 tonnes and is operating along a 2 percent upgrade and the rolling resistance is 45 kg/tonne. Pull available for towing the load is________________?
A. 3425 kg
B. 5515 kg
C. 4350 kg
D. 2975 kg - The basic action involved in sheep foot rolling is_______________?
A. Kneading
B. Pressing
C. Tamping
D. Vibration - What estimate would you give for the variance in above problem ?
A. 81
B. 54
C. 36
D. 9 - The grade resistance factor for an earth moving machine can be obtained by multiplying grade percentage by a factor approximately equal to_________________?
A. 2 kg/tonne
B. 6 kg/tonne
C. 9 kg/tonne
D. 20 kg/tonne - Which of the following excavators is most suitable for digging under water?
A. Drag line
B. Hoe
C. Clam shell
D. Dipper shovel
